package demo1;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 苏李涛
 * Date: 2024-05-18
 * Time: 21:05
 */
public class Computer {
    public void powerOn(){
        System.out.println("打开笔记本电脑");
    }

    public void powerOff(){
        System.out.println("关闭笔记本电脑");
    }

    public void useDevice(USB usb) {
        usb.openDevice();
        if (usb instanceof KeyBoard) {
            KeyBoard keyBoard = (KeyBoard)usb;
            keyBoard.inPut();
        }else {
            Mouse mouse = (Mouse)usb;
            mouse.click();
        }

        usb.closeDevice();
    }
}
